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Ambient Temperature and Prevalence of Obesity: A Nationwide Population-Based Study in Korea

BACKGROUND: Recent studies have suggested a possible association between outdoor or indoor temperature and obesity. We aimed to examine whether ambient temperature is associated with the prevalence of obesity or abdominal obesity in the Korean population. METHODS: Data on anthropometric, socio-demog...

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Autores principales: Yang, Hae Kyung, Han, Kyungdo, Cho, Jae-Hyoung, Yoon, Kun-Ho, Cha, Bong-Yun, Lee, Seung-Hwan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4629885/
https://www.ncbi.nlm.nih.gov/pubmed/26524686
http://dx.doi.org/10.1371/journal.pone.0141724
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author Yang, Hae Kyung
Han, Kyungdo
Cho, Jae-Hyoung
Yoon, Kun-Ho
Cha, Bong-Yun
Lee, Seung-Hwan
author_facet Yang, Hae Kyung
Han, Kyungdo
Cho, Jae-Hyoung
Yoon, Kun-Ho
Cha, Bong-Yun
Lee, Seung-Hwan
author_sort Yang, Hae Kyung
collection PubMed
description BACKGROUND: Recent studies have suggested a possible association between outdoor or indoor temperature and obesity. We aimed to examine whether ambient temperature is associated with the prevalence of obesity or abdominal obesity in the Korean population. METHODS: Data on anthropometric, socio-demographic, laboratory and lifestyle factors were retrieved from National Health Insurance System data obtained in 2009–2010. Thirty years (1981 to 2010) of meteorological parameters for 71 observation areas were acquired from the Korea Meteorological Administration. Included in this analysis were 124,354 individuals. A body mass index (BMI) ≥ 25 kg/m(2) and a waist circumference (WC) ≥ 90 cm (men) or 85 cm (women) were considered to represent obesity and abdominal obesity, respectively. RESULTS: The mean annual temperature (MAT) ranged from 6.6°C to 16.6°C, and BMI was positively correlated with MAT (r = 0.0078, P = 0.0065). WC was positively correlated with MAT (r = 0.0165, P < 0.0001) and negatively correlated with the number of days with mean temperature < 0°C (DMT0; r = –0.0129, P = 0.0002). After adjusting for age, sex, smoking status, alcohol consumption, exercise, income, residential area and altitude, the odds ratios (95% CI) for obesity and abdominal obesity in the highest quintile MAT group were 1.045 (1.010, 1.081) and 1.082 (1.042, 1.124), respectively, compared with the lower four quintiles of the MAT group. Similarly, subjects in the area of the lowest quintile of DMT0 had significantly higher odds of abdominal obesity compared with the higher four quintile groups of DMT0. CONCLUSION: This study finds an association between ambient temperature and prevalence of obesity in the Korean population when controlling for several confounding factors. Adaptive thermogenesis might be a possible explanation for this phenomenon.
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spelling pubmed-46298852015-11-13 Ambient Temperature and Prevalence of Obesity: A Nationwide Population-Based Study in Korea Yang, Hae Kyung Han, Kyungdo Cho, Jae-Hyoung Yoon, Kun-Ho Cha, Bong-Yun Lee, Seung-Hwan PLoS One Research Article BACKGROUND: Recent studies have suggested a possible association between outdoor or indoor temperature and obesity. We aimed to examine whether ambient temperature is associated with the prevalence of obesity or abdominal obesity in the Korean population. METHODS: Data on anthropometric, socio-demographic, laboratory and lifestyle factors were retrieved from National Health Insurance System data obtained in 2009–2010. Thirty years (1981 to 2010) of meteorological parameters for 71 observation areas were acquired from the Korea Meteorological Administration. Included in this analysis were 124,354 individuals. A body mass index (BMI) ≥ 25 kg/m(2) and a waist circumference (WC) ≥ 90 cm (men) or 85 cm (women) were considered to represent obesity and abdominal obesity, respectively. RESULTS: The mean annual temperature (MAT) ranged from 6.6°C to 16.6°C, and BMI was positively correlated with MAT (r = 0.0078, P = 0.0065). WC was positively correlated with MAT (r = 0.0165, P < 0.0001) and negatively correlated with the number of days with mean temperature < 0°C (DMT0; r = –0.0129, P = 0.0002). After adjusting for age, sex, smoking status, alcohol consumption, exercise, income, residential area and altitude, the odds ratios (95% CI) for obesity and abdominal obesity in the highest quintile MAT group were 1.045 (1.010, 1.081) and 1.082 (1.042, 1.124), respectively, compared with the lower four quintiles of the MAT group. Similarly, subjects in the area of the lowest quintile of DMT0 had significantly higher odds of abdominal obesity compared with the higher four quintile groups of DMT0. CONCLUSION: This study finds an association between ambient temperature and prevalence of obesity in the Korean population when controlling for several confounding factors. Adaptive thermogenesis might be a possible explanation for this phenomenon. Public Library of Science 2015-11-02 /pmc/articles/PMC4629885/ /pubmed/26524686 http://dx.doi.org/10.1371/journal.pone.0141724 Text en © 2015 Yang et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Yang, Hae Kyung
Han, Kyungdo
Cho, Jae-Hyoung
Yoon, Kun-Ho
Cha, Bong-Yun
Lee, Seung-Hwan
Ambient Temperature and Prevalence of Obesity: A Nationwide Population-Based Study in Korea
title Ambient Temperature and Prevalence of Obesity: A Nationwide Population-Based Study in Korea
title_full Ambient Temperature and Prevalence of Obesity: A Nationwide Population-Based Study in Korea
title_fullStr Ambient Temperature and Prevalence of Obesity: A Nationwide Population-Based Study in Korea
title_full_unstemmed Ambient Temperature and Prevalence of Obesity: A Nationwide Population-Based Study in Korea
title_short Ambient Temperature and Prevalence of Obesity: A Nationwide Population-Based Study in Korea
title_sort ambient temperature and prevalence of obesity: a nationwide population-based study in korea
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4629885/
https://www.ncbi.nlm.nih.gov/pubmed/26524686
http://dx.doi.org/10.1371/journal.pone.0141724
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